Recent content by nag

  1. N

    Acrobats trajectory with a swing

    Homework Statement Two acrobats, each of 72.0 kg, launch themselves together from a swing, holding hands. Their velocity at launch was 6.80 m/s and the angle of their initial velocity relative to the horizontal was 32.0 degrees upwards. At the top of their trajectory, their act calls for...
  2. N

    Rocket accelaation at the start of fuel burn

    Hi, I followed your reply and net force on rocket = (1013.89 m/s)(5/13)kg/s = 389.96N Since F=ma => a = 389.96 / 420(the initial mass) Is this right way of doing. Thanks.
  3. N

    Rocket accelaation at the start of fuel burn

    Thanks for the help. It is obvious that backward thrust imposes forward force on rocket. In this case as the fuel start to burn I guess rocket gains a little acceleration. Please correct me If I am wrong or missing any.
  4. N

    Rocket accelaation at the start of fuel burn

    Thanks for the help. It is obvious that backward thrust imposes forward force on rocket. In this case as the fuel start to burn I guess rocket gains a little acceleration. Please correct me If I am wrong or missing any.
  5. N

    Rocket accelaation at the start of fuel burn

    Hi Guys this is the problem I am stuck at: The solid fuel of a 420.0 kg rocket traveling at 18100.0 km/hr is ignited to correct the rocket trajectory in mid-flight to Mars. 5.00 kg of fuel is burnt in 13.0 s. If the exhaust velocity of the fuel, relative to the rocket, is 3650.00 km/hr, what...
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